Car-coupling.



J. A. LARMORE.

CAR COUPLING.

APPLICATION FILED JUNE 9.191s.

Patented May 15, 1917.

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CAR-COUPLING.

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Specification of Letters Patent.

Patented May is, ieiv.

Application filed June 9,1916. Serial No. 102,607.

To all whom itmag concern:

Be it knownthat 1, James A. LARMORE, a citizen of the United States,residing at Westgrovc, county of Chester, and Stateof clennsylvania,have invented a new and useful Improvement in Car- Couplings, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, which form a part of thisspecification.

My invention relatesto the class of car couplers generally known as ofthe Janney type, whereby cars provided'with them may be coupled togetherby the impact of coming together and without the aid of an operator. Inthis coupler, in general, a knuckle jaw is held in coupled position by alatch which may be sprung to accomplish the uncoupling.

The priiilcipal object of my invention is to provide a couplercombiningthese features in a novel and advantageous manner.

To this end I provide in the drawhead a knuckle jaw and a latch lever,and spring connection between the two which is always active, no matterin what position the knuckle may be.

My coupler will act to engage with an other mating coupler when theknuckle jaws ofboth are open or when one is open and the other closed- Iam aware that this is not a new accomplishment, per sc, but 1 accomplish it by a very simple construction, necessitating only the partsabove named, and therefore insuring a maximum of dependability andlength of life at a minimum cost.

My invention has certain other features of novelty and advantage, whichwill be brought out in the description. j j

I will now proceed to describe in detail a preferred embodiment of myinvention in connection with the accompanying drawings, in which- Figure1 is a horizontal view, partly broken away, of two of my improvedcouplers in engaged relation.

Fig. 2 is a similar view showing the couplers inthe act of disengaging,one of the knuckles having been sprung open.

Fig. 3 is a similar view showing the couplers about to engage eachother, both knuckles being inopen position.

a, a represent the drawheads of the opposing cars provided with myimproved couplers.

The drawheads are of the usual circular shape, and each contains theknuckle jaw I). pivoted at o. Pivoted directly to the rear of pivot cisthe latch lever d having the rearwardly extending arm 6. As shown,

this arm may be connected with a rod 7 extending to the side of the carfor conven ience of operating.

The other arm of lever cl carries a block pivoted at 9 through whichslides rod '71, pivoted to the knuckle jaw Z). This rod car ries acoiled s aringi always in compression between the lever and the knucklejaw.

Lever d is provided with a notch j which engages the tail of the knucklejaw when the latter is in its closed position, as shown in Fig. l and'inthe right hand coupler in Fig. 2.

in order to engage thejawsand. couple the cars when the couplers arebrought together bothjaws may be opened by operat ing their rods 7, eachjaw being held by spring Z in a fixed open position by its nosecontacting with astop is as shown in Fig. 8.

The nose of each jaw presses against the tail of the opposing jaw, andas the cars are brought together, the jaws are turned on their pivot 0against springs '5 until their tails automatically latch themselves innotches j in the latch levers as shown in Fig. 1 and the cars arecoupled together. The same result may be accomplished by opening onlyone of the knuckle jaws, the other remaining closed. This case isillustrated in Fig. 2 wherein it is seen'that when the couplers arebrought together the nose of the closed jaw (on the right) will contactwith the tail of the open jaw (on the left) and forceth'e latter. toturn into a position to engage its latch lever.

Rod 7b is pivoted to the knuckle jaw at such a point that when the jawis in its closed position spring a tends to; hold it closed, yet whenthe latch lever is opened a slight pull by the opposing coupler willthrow the spring across the line connecting pivots 0 and g and spring awill act to press the jaw into its open position against stop k.

When the knuckle jaw is latched in its closed position any amount ofpull by theopposing coupler cannot free its tail from notch j, as thepull thereon is in a direction directly away from the pivot of lever (Z.

be members Spring 2' also insures that there shall be no shaking, orolting apart of the engaged Having now fully described my invention,

what I wish toclaim and protect by Letters Patent is:

1. Ina car coupling, in combination, a pivoted knuckle jaw provided witha tail, a pivoted latching lever adapted to engage said tail and meanscomprising a compressionspring interposed between said jaw and levertending to hold the jaw closed when it is in latched position and o'Jerating in connection with a pull on the jaw when the latching leveris moved-to release the jaw, to turn and maintain saidjjaw fully open. 1

2. In a car coupling, in combination, a

pivoted knuckle jaw provided with tail,

a pivoted latching lever adapted to engage said tail and meanscomprising a compression spring interposed between. said jaw and levertending to hold the jaw fully open, and operating when said jaw isturned toward its closed position to reverse its action and hold the jawin looking relation with the latch lever, said spring being constantlyunder tension.

In a car coupling, incombination, a lever pivotedbetweenits endsandhaving a rearwardly extending arm on one sideol its pivot and an armon the other side of its pivot, said lever being notched near its pivot,a plvoted aw havmg a tall engaging,

"Ge lies of this patentmay beiobtained for said notch when in closedposition and there by held from opening, and a tension device one end ofWhlch is carried by and movable with the second arm of the latch leverand the other end of which carried by the aw 1 between its pivot and theengagingend of the tail.

t. In a car coupling, in combination, a

pivot, a pivoted jaw having a tail engaging said notch when in closedposition and thereby held from opening, and a. tension device one end ofwhich is carried by and movable with the second arm of the last leverand the other end of which is carried by the'jaw between its pivot andthe engaging end of the tail, and the point of connection of the tensiondevice to the jaw, when closed, being at one side of, but relativelyclose to a. line connecting the jaws pivot and the point of connectionof the tension device with the lever, whereby, when the jaw is movedaway from its closed position by the manual turning of the latch lever,said point of connection of the tension device to the jaw moves on theother slde of the line, causing the ten v JAMES A. LABMORE.

fivecents each, by addressing the Commissioner of Patents, Washington,D. 0.

